Order “Rotaliida” > Family “Elphidiidae” > Genus “Elphidium”
| Original description | Orbigny, A. D`., 1846, Paris: Gide et Comp. |
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| Further reference | Pillet L, de Vargas C, Pawlowski J, 2011-07-01, Protist, 162, 3, 394-404 |
Test strongly compressed; periphery acute, with a strong narrow keel bearing irregular short spines at the end of most sutures.
Order “Rotaliida” > Family “Elphidiidae” > Genus “Elphidium”
| Original description | Cushman, J. A., 1930, United States National Museum bulletin 104, 79pp. |
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| Description | Buzas, M., A., Culver, S., J., Isham, L., B., 1985, Journal of Paleontology, 59, 1075-1090 |
Test planispiral, bilaterally symmetrical; sutural canal system opens into a single row of pores; septal bridges usually hollow and contain a retral process; aperture a series of large circular pores at base of aperture face.
